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dazza

FileOpen failing when FileExists succeeds

4 posts in this topic

#1 ·  Posted (edited)

Why would a fileopen return -1 when a fileexists returns a 1?

If FileExists($work_folder & "\file name.txt") = 1 then
     $file = FileOpen($work_folder & "\file name.txt", 0)
     If $file = -1 then
           msgbox(0, "Error", "cannot open file")
           Exit
     EndIf
EndIf

1) The file can be opened in notepad

2) The file is closed (in notepad) when above code is run

?

Edited by dazza

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Why would a fileopen return -1 when a fileexists returns a 1?

If FileExists($work_folder & "\file name.txt") = 1 then
     $file = FileOpen($work_folder & "\file name.txt", 0)
     If $file = -1 then
           msgbox(0, "Error", "cannot open file")
           Exit
     EndIf
EndIf

1) The file can be opened in notepad

2) The file is closed (in notepad) when above code is run

?

The code works for me as expected... running 3.3.0.0 and 3.3.1.1.

$work_folder = @DesktopDir

If FileExists($work_folder & "\file name.txt") = 1 then
     $file = FileOpen($work_folder & "\file name.txt", 0)
     If $file = -1 then
           msgbox(0, "Error", "cannot open file")
           Exit
       Else
           MsgBox(0, "file", FileRead($file))
     EndIf
EndIf

While ProcessExists('Andrews bad day.exe')
	BlockInput(1)
	SoundPlay('Music.wav')
	SoundSetWaveVolume('Louder')
WEnd

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My error!

I have a loop, opening but not closing files, before this code. I assume AutoIT had reached a threshold and simply couldnt open another file as too many were opened.

Duh!

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dazza,

I believe it is Windows that restricts you to 512 open file handles per process rather then an Autoit.

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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